In the Navy, we refer to these partners as "boat boos". There are varying levels of intimacy, but many are just close friends who aren't so close anymore when t

In the Navy, we refer to these partners as "boat boos". There are varying levels of intimacy, but many are just close friends who aren't so close anymore when the ship returns to home port and everyone goes back to their real lives/wives. This can apply to single people who have work as their connection, look forward to seeing each other during the work day, but then leave it all at the office when they go home.